It seems like all the recent repertoire books are for black, whereas authors from the white side always recommend the exchange variation or the Catalan.

I'm interested in playing the white side of 1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Nc3, but don't know from where to start. I have a good line against the Semi-Slav, but need something against the rest of Black's defences. Ambitious mainlines are preferred.